Electric connection-rosette.



PATENTED AUG. 16, 1904.

M. NORDEN.

ELECTRIC CONNECTION ROSETTE.

NVE TU APPLIQATION FILED JAN. 12, 1903.

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If!!! J2 NO MODEL.

UNITED STATES Patented August 16, 1904".

PATENT OFFICE.

MORTIMER NORDEN, OF NEW YORK, N. Y., ASS IGNOR TO THE NORDEN- BITTNER ELECTRIC COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

ELECTRIC CONNECTIQN-ROSETTE.

SPECIFICATION forming part of Letters Patent No. 767,828, dated August 16, 1904. Application filed January 12, 1903. Serial No. 138,606. (No model.)

To all whom it may concern:

Be it known that I, MORTIMER NORDEN, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, have invented-an Improvement in Electric Connection-Rosettes, of which the following is a specification.

My invention relates to an electric connec tion-rosette or similar device made of porce- Io lain or other suitable vitrified or insulating material and adapted to be secured to a ceiling or side wall to make contact with electric conductors and from which conducting-wires, which may also be suspending devices, pass I5 to an incandescent electric lamp.

The rosette device comprises abase and a head adapted to interlock and to be connected by devices which simultaneously form both mechanical and electrical connections for the parts. I

The base is adapted to be connected to a ceiling or wall and to receive the conductingwires, while the head receives the conductors connected with terminals therein and which 2 5 extend to an incandescent electric lamp. When this device is connected to a ceiling, the conductors therefrom pass through a central aperture, and when the'device is connected to a side wall provision is made for the connec- 3 tion to the head portion of a bracket-arm through which the conductors pass to the incandescent lamp. The device for connection to a side wall also has a central aperture for the passage of theconducting-wires, and at said aperture devices are employed for the connection thereto of the bracket-arm.

In the drawings, Figures 1 and 2 are vertical sections representing my improvement, the one being at right angles to the other and 4 Fig. 2 being on the lines m m of Fig. 1 and m w of Fig. 3 as connected to a ceiling. Fig.

3 isa plan of the base and section through the head at 3/ y of Fig. 1. Fig. 4 is a plan of the back of the head. Fig; 5 is a sectional plan,

and Fig. 6 is a plan, of a rosette structure of slightly-modified form, as connected to a side wa Referring to Figs. 1 to 4, inclusive, the base a is provided with a central hole 2 for a screw, which is adapted to secure the same to a ceiling, (shown by the section-lines.) The head I) is recessed or hollow in the back. It is provided with a central aperture 3, that is shown as shouldered, and with apertures 4 5 in pairs through the body of the head and at opposite sides of the central aperture; The base and the head are of porcelain or other suitable vitrified or insulating material.

In the structure shown in Figs. 1 to l, inclusive, the .base is received within the back of the head in the recess provided therein. The base a is ,cut away at 8 at the corresponding opposite corners, so as to provide for the entrance of conducting-wires.

In the structure shown in Figs. 5 and 6 the base a corresponds in area with the head 6' and the surface of the base is shouldered to receive the back edge of the head I), which fits around the same, said head I) being recessed or hollow in the back substantially the same as the head I). This head is provided with apertures 13 in pairs upon opposite sides, and through these apertures the conductingwires are led, and the shouldered aperture 3 is in the structure, Figs. 5 and 6, provided with a sleeve f, interiorly threaded at one end and exteriorly threaded at the opposite end, and a nut 14 screws upon the exteriorly-threaded end of said sleeveagainst the shoulder of the central aperture to hold the sleeve in position. This sleeve is adapted to have connected to it a bracket-arm. The structure, Figs. 5 and 6, is adapted to be connected to a side wall by a screw 7, which passes through the central hole 2 in the base a.

. In the following particulars the modified structures illustrated are identical. Upon the base plates 0 c" are connected by attachingscrews 9, which pass through the base from the rear into said plates, the heads of said screws being in recesses preferably filled up with composition material. Said plates are provided with threaded apertures at about the center-thereof and at their other ends with binding-screws 10, to which the respective ends of line or conducting wires are 0011-.

nected.; To the inner surface of the headthat is, at the base of the recess formed in the back of the headare. connected plates dd. These plates are secured to the head by attaching-screws 11, which pass through the head from the outside, the heads of the screws being in the apertures 5, which are preferably filled up above the heads of said screws with an insulating composition material. Bindingscrews 12 are connected to the ends of said plates d d opposite to the attaching-screws, and said plates are also provided with interiorly-threaded and central openings. One end of each of the plates 0 c and d d is advantageously turned up at a right angle to the major portion of the plates. The end that is so turned up comes closely adjacent to the inner surface of the base or head, and the function performed by this turned-up portion is to guard against a swinging movement of said plates which would carry the same appreciably out of the line or position that they are intended to occupy. A drawing strain of the conductors may assist this movement.

lprovide screws 0 0, each of which-is formed with a central stem portion with one end threaded and pointed and with the other end formed as a head with a kerf for a screwdriver. The stem portion is preferably made of less diameter than the head portion and also of less diameter than-the threaded end, so that there are shoulders formed at the ends of the stem portion and at the junction of the same with the head and threaded portions.- These screws are passed through the plates at d by turning the same for the passage of the screw portions, and after the screw portions'arepassed through the plates ol (2 said screws are free to be moved lengthwise the extent. of the stem portions, and the threaded ends of said screws enter the plates 0 c in the interiorly-threaded openings. provided therein, the pointedv ends assisting in finding the threaded apertures of the plates 0 a when the screws are manipulated outside the rosette. The bases at and a are preferably recessed beneathxthe plates c a to receive as much of the threaded and pointed ends of the screws as may pass through the plates 0 0 when the parts are connected.

It will be noticed from the drawings that in Figs. '1 and 2 the base a, is secured to the ceiling and thehead 6 passes over the base to contact of its back edge with the ceiling, and when the screws ee are applied and put under tension the relationof the one part to the other is limited by the contact with the ceiling, while in the form shown in Figs. 5 and 6 the'base of the head portion restsupon the shouldered edge of the base a, and the relation of the said base and head in this form are thus limited when the screws 6 e are put under tension. The conductors that extend "to the socket of the incandescent lamp pass through the central apertures 3 in the heads,

and their respective ends are secured to the binding-screws 12 of the plates cl (1. The electric current in circuit from the conducting-wires flows between the plate d and the plate 0 by the screw e and between the plate d and the plate 0 by the screw 6', said screw e thus forming both a mechanical attaching device'and a path for the electric current.

It will be further apparent from the illus-' tration and foregoing description that either head I) or b may be separated from either base a or a by the operation of the screws 6 e and this, too, without disturbing the base and its connection to the ceiling or side wall and the connection to it of the electric conductingwires and also without disturbing theconnection of the wires that pass to the electric lamp with the binding-screws 12, the screws e e being manipulated independent of the Wires to the incandescent electric lamp which pass through the central aperture of the head.

It will also be apparent from the description and illustration that the main-line conductors employed in connection with the form shown in Figs. 1 to 1, inclusive, might be in the ceiling or in the side wall with only the ends protruding, these ends being brought through the apertures formed by the cut-away portions 8 of the base a to connection with the screws 10, while from the form shown in Figs. 5 and 6 the mainconducting-wires entering through the apertures 13 might be strung along the surface of the side wall or ceiling, and also that the sleeve f and nut 14 may be employed with equal facility in the form of devices shown in Figs. 5 and 6 or in Figs. 1 to 4, inclusive, that the device shown in Figs. 1 to 4, inclusive, might be used against a ceiling or a side wall, and that the device, Figs.

5 and 6, connected to a side wall, might with equal advantage be connected to a ceiling, .in which latter case, however,it would be advantageous to remove thgsleevef and nut 14.

I claim as my invention 1. An electric connection-rosette, comprising a base of suitable insulating material, means for connecting the same to a support, a head portion of corresponding material coacting with said base and between which parts there are apertures providing for the entrance vof main conducting-wires, devices secured to the base and to which said conducting-wires are directly connected, devices connected to the inner surface of the head, and means passing through-the same to connection with the devices upon-the'base for -se'curing the base and head together, said head having a central aperturefor the wires passing to an incandescent, electric lamp, and the inner ends of which are connected to the devices secured to n the head.

2. An electric connection-rosette, comprising a base of suitable insulating material having a central aperture for a screw connecting the same to a support, metal plates and means material, of a head of similar material havfor securing the same to said base, a head of corresponding material to the base and adapted to set over said base, said head having a central shouldered aperture, and apertures in pairs at opposite sides of the central aperture,-metal plates upon the inner surface of the head, and means for connecting, the said plates to the head, there being apertures between the contacting parts of said head and base to receive the incoming electric conductors, and screws passing through the plates of the head and connecting with the plates of the base and simultaneously connecting the head and base and said screws preventing the separation of said head and base and forming paths for the electric current between the plates of the parts.

3. In an electric connection-rosette, the combination with a base'of suitable insulatinging a hollow back portion, a central shouldered apertureand apertures in pairs through the body portion of the head upon opposite sides of the central aperture, and said headsetting down upon and in part surrounding said base, metal plates against the inner surface of said head, and screws'passing from the outside through said apertures to connection with said plates for securing the same to the head, binding-screws connected to the plates of the head for conductors passing to an incandescent electric lamp, and screws passing from the outside down through said apertures of the head and through said plates to connection with devices upon the base and mechanically connecting'th'e head to the base, substantially as set forth.

4. In an electric connection rosette, the combination ,with a base and coacting head of suitable insulating material, of plates in pairs upon the base and upon the inner surface of the head provided with central interiorlythreaded openings, screws each having a head at one end and threaded and pointed at the other end and an intermediate stem portion of smaller diameter and passing through the interiorly-threaded apertures of said plates,

each head part bearing against one plate and each threaded end engaging the opposite plate, substantially, as set forth.

Signed by me this 9th day of January, 1903.

MORTIMER NORDEN.

Witnesses:

GEo. T. PINGKNEY, S. T. ,HAVILAND. 

